Bump @github/relative-time-element from 4.4.8 to 5.0.0

Bumps [@github/relative-time-element](https://github.com/github/relative-time-element) from 4.4.8 to 5.0.0.
- [Release notes](https://github.com/github/relative-time-element/releases)
- [Commits](github/relative-time-element@v4.4.8...v5.0.0)

---
updated-dependencies:
- dependency-name: "@github/relative-time-element"
  dependency-version: 5.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -50,7 +50,7 @@
     "@github/details-menu-element": "^1.0.12",
     "@github/image-crop-element": "^5.0.0",
     "@github/include-fragment-element": "^6.3.0",
-    "@github/relative-time-element": "^4.0.0",
+    "@github/relative-time-element": "^5.0.0",
     "@github/remote-input-element": "^0.4.0",
     "@github/tab-container-element": "^3.1.2",
     "@oddbird/popover-polyfill": "^0.5.2",